The Insulation Protects the User from the Possibility of Touching Live Parts of a Circuit and the Grounded Walls of the Box or Other Equipment. by Having the...
The insulation protects the user from the possibility of touching live parts of a circuit and the grounded walls of the box or other equipment. By having the shaft of the screwdriver protectively coated with a non-conductive material, it is safe to hold the screwdriver's shaft for balance.
Can you touch a live wire without being shocked?
Black and red wires are usuallyenergized, and white wires are usually neutral. Metal electrical boxes should be grounded to prevent shocks. If you are in contact with a live wire or any live component of an energized electrical device—and also in contact with any grounded object—you will receive a shock.
Using the pliers swap each wire from the bad outlet to the new one, never touching either the outlets or the wires with bare fingers. If you don't have enough play in the wire's to do this, then take the old wires off one at a time & cover the tips with electrical tape.